Data.MediaBus.Basics.OrderedBy

Value level Order. Sometimes values stored in e.g. Sets have an Ord instance, which does not represent the desired order. In that case use this product type to pass a value along with the value to be for comparison by the Eq and Ord instances.

Documentation

data OrderedBy cmp a

A wrapper around a payload value paired with a value to be used when comparing that payload value.

Constructors

MkOrderedBy cmp a

Instances

Eq cmp => Eq (OrderedBy cmp a)

Methods

(==) :: OrderedBy cmp a -> OrderedBy cmp a -> Bool

(/=) :: OrderedBy cmp a -> OrderedBy cmp a -> Bool

Ord cmp => Ord (OrderedBy cmp a)

Methods

compare :: OrderedBy cmp a -> OrderedBy cmp a -> Ordering

(<) :: OrderedBy cmp a -> OrderedBy cmp a -> Bool

(<=) :: OrderedBy cmp a -> OrderedBy cmp a -> Bool

(>) :: OrderedBy cmp a -> OrderedBy cmp a -> Bool

(>=) :: OrderedBy cmp a -> OrderedBy cmp a -> Bool

max :: OrderedBy cmp a -> OrderedBy cmp a -> OrderedBy cmp a

min :: OrderedBy cmp a -> OrderedBy cmp a -> OrderedBy cmp a